content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * -------------------
   * CategoryAxis3D.java
   * -------------------
   * (C) Copyright 2003-2012, by Klaus Rheinwald and Contributors.
   *
   * Original Author:  Klaus Rheinwald;
   * Contributor(s):   Tin Luu,
   *                   David Gilbert (for Object Refinery Limited);
   *                   Adriaan Joubert;
   *
   * Changes
   * -------
   * 19-Feb-2003 : File creation;
   * 21-Mar-2003 : Added to JFreeChart CVS, see bug id 685501 for code
   *               contribution from KR (DG);
   * 26-Mar-2003 : Implemented Serializable (DG);
   * 13-May-2003 : Renamed HorizontalCategoryAxis3D --> CategoryAxis3D, and
   *               modified to take into account the plot orientation (DG);
   * 14-Aug-2003 : Implemented Cloneable (DG);
   * 21-Aug-2003 : Fixed draw() method bugs (DG);
   * 22-Mar-2004 : Added workaround for bug 920959 (null pointer exception with
   *               no renderer) (DG);
   * ------------- JFREECHART 1.0.x ---------------------------------------------
   * 18-Aug-2006 : Fix for bug drawing category labels, thanks to Adriaan
   *               Joubert (1277726) (DG);
   * 16-Apr-2009 : Draw axis line and tick marks (DG);
   * 16-Jun-2012 : Removed JCommon dependencies (DG);
   *
   */
  
  package org.jfree.chart.axis;
  
  import java.awt.Graphics2D;
  import java.awt.geom.Rectangle2D;
  import java.io.Serializable;
  
  import org.jfree.chart.Effect3D;
  import org.jfree.chart.ui.RectangleEdge;
  import org.jfree.chart.plot.CategoryPlot;
  import org.jfree.chart.plot.PlotRenderingInfo;
  import org.jfree.chart.renderer.category.CategoryItemRenderer;
  
  /**
   * An axis that displays categories and has a 3D effect.
   * Used for bar charts and line charts.
   */
  public class CategoryAxis3D extends CategoryAxis
          implements Cloneable, Serializable {
  
      /** For serialization. */
      private static final long serialVersionUID = 4114732251353700972L;
  
      /**
       * Creates a new axis.
       */
      public CategoryAxis3D() {
          this(null);
      }
  
      /**
       * Creates a new axis using default attribute values.
       *
       * @param label  the axis label (<code>null</code> permitted).
       */
      public CategoryAxis3D(String label) {
          super(label);
      }
  
      /**
       * Draws the axis on a Java 2D graphics device (such as the screen or a
       * printer).
       *
       * @param g2  the graphics device (<code>null</code> not permitted).
       * @param cursor  the cursor location.
       * @param plotArea  the area within which the axis should be drawn
       *                  (<code>null</code> not permitted).
       * @param dataArea  the area within which the plot is being drawn
       *                  (<code>null</code> not permitted).
       * @param edge  the location of the axis (<code>null</code> not permitted).
       * @param plotState  collects information about the plot (<code>null</code>
       *                   permitted).
       *
       * @return The axis state (never <code>null</code>).
       */
      @Override
      public AxisState draw(Graphics2D g2,
                            double cursor,
                            Rectangle2D plotArea,
                            Rectangle2D dataArea,
                            RectangleEdge edge,
                            PlotRenderingInfo plotState) {
  
          // if the axis is not visible, don't draw it...
          if (!isVisible()) {
              return new AxisState(cursor);
          }
  
          // calculate the adjusted data area taking into account the 3D effect...
          // this assumes that there is a 3D renderer, all this 3D effect is a
          // bit of an ugly hack...
          CategoryPlot plot = (CategoryPlot) getPlot();
  
          Rectangle2D adjustedDataArea = new Rectangle2D.Double();
          if (plot.getRenderer() instanceof Effect3D) {
              Effect3D e3D = (Effect3D) plot.getRenderer();
              double adjustedX = dataArea.getMinX();
              double adjustedY = dataArea.getMinY();
              double adjustedW = dataArea.getWidth() - e3D.getXOffset();
              double adjustedH = dataArea.getHeight() - e3D.getYOffset();
  
              if (edge == RectangleEdge.LEFT || edge == RectangleEdge.BOTTOM) {
                  adjustedY += e3D.getYOffset();
              }
              else if (edge == RectangleEdge.RIGHT || edge == RectangleEdge.TOP) {
                  adjustedX += e3D.getXOffset();
              }
              adjustedDataArea.setRect(adjustedX, adjustedY, adjustedW,
                      adjustedH);
          }
          else {
              adjustedDataArea.setRect(dataArea);
          }
  
          if (isAxisLineVisible()) {
              drawAxisLine(g2, cursor, adjustedDataArea, edge);
          }
          // draw the category labels and axis label
          AxisState state = new AxisState(cursor);
          if (isTickMarksVisible()) {
              drawTickMarks(g2, cursor, adjustedDataArea, edge, state);
          }
          state = drawCategoryLabels(g2, plotArea, adjustedDataArea, edge,
                  state, plotState);
          state = drawLabel(getLabel(), g2, plotArea, dataArea, edge, state);
  
          return state;
  
      }
  
      /**
       * Returns the Java 2D coordinate for a category.
       *
       * @param anchor  the anchor point.
       * @param category  the category index.
       * @param categoryCount  the category count.
       * @param area  the data area.
       * @param edge  the location of the axis.
       *
       * @return The coordinate.
       */
      @Override
      public double getCategoryJava2DCoordinate(CategoryAnchor anchor,
                                                int category,
                                                int categoryCount,
                                                Rectangle2D area,
                                                RectangleEdge edge) {
  
          double result = 0.0;
          Rectangle2D adjustedArea = area;
          CategoryPlot plot = (CategoryPlot) getPlot();
          CategoryItemRenderer renderer = plot.getRenderer();
          if (renderer instanceof Effect3D) {
              Effect3D e3D = (Effect3D) renderer;
              double adjustedX = area.getMinX();
              double adjustedY = area.getMinY();
              double adjustedW = area.getWidth() - e3D.getXOffset();
              double adjustedH = area.getHeight() - e3D.getYOffset();
  
              if (edge == RectangleEdge.LEFT || edge == RectangleEdge.BOTTOM) {
                  adjustedY += e3D.getYOffset();
              }
              else if (edge == RectangleEdge.RIGHT || edge == RectangleEdge.TOP) {
                  adjustedX += e3D.getXOffset();
              }
              adjustedArea = new Rectangle2D.Double(adjustedX, adjustedY,
                      adjustedW, adjustedH);
          }
  
          if (anchor == CategoryAnchor.START) {
              result = getCategoryStart(category, categoryCount, adjustedArea,
                      edge);
          }
          else if (anchor == CategoryAnchor.MIDDLE) {
              result = getCategoryMiddle(category, categoryCount, adjustedArea,
                      edge);
          }
          else if (anchor == CategoryAnchor.END) {
              result = getCategoryEnd(category, categoryCount, adjustedArea,
                      edge);
          }
          return result;
  
      }
  
      /**
       * Returns a clone of the axis.
       *
       * @return A clone.
       *
       * @throws CloneNotSupportedException If the axis is not cloneable for
       *         some reason.
       */
      @Override
      public Object clone() throws CloneNotSupportedException {
          return super.clone();
      }
  
  }
  